MOAN AQUARIUM INTERNAL FILTER BL-420F Sponge Aquarium Filter(Biological Filtration for Salt Water and Fresh Water)
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An aquarium filter is an essential piece of equipment used to maintain water quality and ensure the health and well-being of fish and other aquatic inhabitants in an aquarium. It works by removing physical and chemical impurities from the water, as well as providing biological filtration to break down harmful toxins.
